Holes in clam mantle

Discussion in 'Tridacnid Clams' started by tangerine3486, Jan 6, 2017.

  1. tangerine3486

    tangerine3486 Active Member

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    Large holes have formed in the clam mantle in the past 24 hours. Parameters are stable as far as i can test for but this is not a glaring parameter problem.

    Initial guess could be a worm or hermit crab. Clam is ~3 inches. Any help is needed. Those are two holes behind the gaping inlet siphon, not to mention the lower part where it does not even reach the shell... :(

    [​IMG]
     
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  2. DaveK

    DaveK Well-Known Member

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    Usually when this occurs with a clam, it's in serious trouble. You can check out the tank for any livestock that might be going after you clam. Sometime clams do make fantastic recoveries, but this is kind of rare. Do keep an eye on it and remove it quickly if it dies.
     
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  3. tangerine3486

    tangerine3486 Active Member

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    Thanks, she died the next day. I was able to get her out shortly. :(
     
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  4. nanoreefing4fun

    nanoreefing4fun Well-Known Member
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  5. Oxylebius

    Oxylebius Well-Known Member

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    The polychaete Oenone fulgida eats snails and clams. They are known for drilling holes in mantles of clam and then eating the flesh. You will need to look for these at night, lights off, use a red headlight, move slowly as they are rapid fast.

    Likewise, look for pyramid snails at the base of the clam. A majority of the snails that feed on clams and oysters belong to the family Pyramidellidae. Pyramidellidae snails feed mostly at night. During the day they stay out of direct sunlight. They extend their proboscis and, using their needle-like stylus, poke a hole into the mantle of the clam. They then suck out the fluid of the mantle.

    http://animal-world.com/Aquarium-Coral-Reefs/Tridacnid-Clams-Ailments
    http://www.advancedaquarist.com/2009/3/aafeature1
    http://www.reefkeeping.com/issues/2006-09/jf/index.php

    I would make sure you don't have these in your tank before you get another clam. Sorry to hear of the loss of this past one.
     
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  6. tangerine3486

    tangerine3486 Active Member

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    Unfortunately I saw a worm that looked a lot like this, if not this worm, at night with a flashlight.
     
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  7. tangerine3486

    tangerine3486 Active Member

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    Bristle worm trap work with this guy?
     
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  8. tangerine3486

    tangerine3486 Active Member

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    No i see some of the DIY traps on the web. Trying that tomorrow.
     
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  9. spiraling

    spiraling Well-Known Member

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    I have battled with these worms. The DIY trap works, but I was only able to get some of them. They drilled a hole in my elegance and killed it, One sure way to know you have them is if you have dead snails covered in slime.
     
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